sobey



(No Model.) W SOB-EY 3 sheets-sheet 1.

SULKY PLOW.

110.462,416. Patented Nov. 3,1891.

(No Moa/e1.) 1 s sheets-sheen 2. W. SOBEY.

SULKY PLOW.

No. 462,416. Patented Nov. 8,1891.

3 Sheets-Sheet 3. W. SOBEY. SULKY PLOW.

(No Model.)

'Patented Nov. 3,1891.

raras PATENT OFFICE.

AWILTAM SORRY, 0F RACINE, VISCONSIN, ASSIGNOR T() THE .`l. l. CASE PLOVlVORKS, F SAME PLACE.

SU LKY- PLOW.

SPECIFICATION forming part of Letters Patent No. 462,416, dated November3, 1891.

Application led November 26, 1890i Serial No. 372.723. (No modell To allwhom t may concern: traveling faster than theheel shall be rst pre- Beit known that l, WiLLIAM SOBEY, a citisented to and caused to quicklyenter the soil, 5 Zen of the l'nited States, residing at Racine, andthen as the rear furrow-wheel drops into in the State of llfiscoiisiii,have invented certhe furrow the bottom edge of the plow will 5 tain newand useful Improvements in Sulkybe brought to the desired workinginclination. Plows, of which I do declare the following to Moreover, asthe point of the plow travels be a full, clear, and exact description,referfaster than the heel of the plow, when the op- 6o ence beinghad tothe accompanying drawings, erating-lever is reversely shifted to raisethe forming part of this specification. plow from the ground the pointwill be given io My present invention has relation more paran upwardinclination that will cause the ticularly to that class of sulky-plowsknown plow to rise quickly from the furrow. as three-wheel plows,"7 twoof the wheels be- A further objection incident to the prior 65 ingfurrow-wheels and the third wheel being constructions of this class ofplows in which the land-wheel.77 In the construction of this the uniformvertical movement is imparted class of plows it has been heretoforeproposed to the plow is that if the plow is set with its to mount theplowbeam upon its sustainingbottom edge at the proper angle for plowingframe by means of two cranks or links inter- (and this angle will bevery slight for plowingr 7o posed between the plow-beam and the frame.certain kinds of soil) the point of the plow is These cranks or linkshave been of uniform presentedto the soilat suchaslightinclination 2 0length and have been set in such position that itisnecessaryfor theoperatorto usemuch with respect to each other as to move in unigreaterforce than would be required if the son and produce a straight verticallift of the point of the plow were presented at a greater 75 plow-thatis to say, an equal movement of inclination, so as to cause it to irstenter the the toe or poin t and heel of the plow. An obground. By mypresent invention in providjection incident to this construction isthat, ing that theplow-pointshall be Iirst presented inasmuch as boththe toe or point and heel to the soil and at an inclination considerablyof the plow had imparted thereto the same in excess of that at which theplowing is to be 8o degree of vertical movement, the point of the done lavoid the necessity of using so great plow was presented to the groundat such a force as would be otherwise necessary, since 3o slightinclination that it did not readily enter the plow-point when presentedat a considlhe soil. If in order to overcome this diftierableinclination tends to run speedily into eulty the plow was set with itspoint at such the ground and to its working position as the 85inclination or angle as to cause it to quickly plow is drawn forward bythe team. Moreenter the soil, then when both the furrowover, with theprior constructions of plows wheels dropped int-o place it was foundthat hereinbefore referred to, if the plow be set the inclination of thepoint of the plow was with its bottom edge at the proper angle for sogreat as to canse an excessive wear upon working, then when the rearfurrow-wheel 9o the plow-point and an undue strain upon the drops int-othe furrow in turning the rst furteani. Moreover, with such oldconstruction row it will be found that the point of the 4o it was foundthat when it was desired to withplow will be lifted above the horizontalor at draw the plow from the ground theupward least will be lifted abovethe proper angle for lifting of the plow from the furrow could notplowing unless some provision is made for 95 be quickly effected and wasattended with con' shifting the position of the sustaining-framesiderable exertion upon the part of the opervertically with respect tothe front furrowato'r, the tendency of the plow being to rewheel.

main in the ground. A further object of my invention is to pro- ()ne ofthe objects of my present invention vide means whereby thesustaining-frame zoo is to sustain the plow-beam in such manner can beadjusted upon the standards of the that the point or toe of the plowwill be caused front and rear furrow-wheels, so that the an- 5o to movemore rapidly than the rear portion gle or inclination from front'to backof the or heel of the plow, so that when the operatbottom edge of theplow can be varied acing-lever is shifted to produce the downwardcording to the character of the soil wherein 1o 5 movement of the plow,the point of the plow the plow is to workr My invention consists,primarily, in mounting the plow-beam upon its sustaining-frame in suchmanner that in the shifting of the plow-beam the point or toe of theplow shall be caused to travel faster than the rear portion or heel ofthe plow, so as to cause the point to more quickly enter the ground loreach the working position and to cause i't also to more rapidly risefrom the ground when it is desired to lift the ploT therefrom.

My invention further consists in sustaining the plow-beam by means ofdifferential cranks or links, whereby a more rapid movement shall beimparted to the point or toe of the plow than to its rear portion orheel.

My invention also consists in adjustably mounting the plow-frame uponthe standards of the front and rear furrow-wheels, so that the degree ofinclination given to the body of the plow can be readily controlled.

My invention further consists in certain details of constructionhereinafter described, illustrated in the accompanying drawings, andparticularly pointed out in the claims at the end of this specification.

Figure l is a perspective view of a plow em- -bodying my improvements.Fig. 2 is a side view, parts being broken away. Fig. 3 is a view similarto Fig. 2, but showing the parts in different positions. Fig. 4 is aplan view, partly in section, of certain of the parts upon a reducedscale.

A and B denote, respectively, the front and rear furrow-wheels ofxtheplow. The front wheel A is carried upon a standard A', that is journaledwithin a vertical box a, bolted to the arm 2 of the sustaining-frame ofthe plow.V At the bottom of the-box a is acollar lV, provided with aset-screw ce', whereby the position of the sleeve ct upon the standard Acan be controlled. In like manner the rear furrow-wheel B is journaledupon the lower end of a standard B, that passes through a vertical boxb, the position of the box upon the standard B being controlled by meansof a set-screw carried by the adjustable collar W. The standards A and Bare preferably bent in such manner as to angle the furrow-wheels A andB, and at the tops of the standards A and B are attached suitablesegment-plates, which, however, form no part of my present invention,these plates relating to the invention set forth in my patent datedSeptember 30, 1890, No. 437,666. The sleeve b is bolted to a plate h2,to which is fastened the converging rear ends of the arms 2 and 3 of theplow-frame, the front ends of these arms being connected lby an arch-bar3u.

C designates the plovswbeam, bent in the usual manner and carrying atits lower end the plow D. This plow-beam C has connected to its forwardportion two brackets E and E', one on each side of the plow-beam, (seeFig. 4,) and through the lower ends of these brackets passes a pivot-rode, upon the outer ends of which are pivotally sustained the cranks orlinks F, the opposite ends of these cranks or links F being fixed uponor cast in piece with a sleeve g upon the main axle G of the machine.rlhe sleeve g is fixed to the' axle G, that isheld within the hangers 4,bolted to the sustaining-frame, and to the crank-arm g', pivotally heldon the axle G adjacen-t to the collar g2, is fixed the stud G', whereonis journaled the land wheel H. Upon the 'end of the main shaft G isfixed the segment-rack K, with which engages the catch of the lever L,whereby the leveling of the plow is effected,as well understood in theart.

The rear portion of the plow-beam Gis provided with a stud or pin c,projecting laterally therefrom, this pin c entering an elonf gated slotor hole m, formed in the end of the crank or link M, that is journaledupon a stud 6, projecting inwardly from the side bar 2 of thesustaining-frame. This crank M is preferably a bell-crank lever, to thearm m of which Vis pivotally connected a connectingrod N, that unitesthe crank M to the operating-lever O, whereby the raising and loweringof the plow-beam and the plow is effected. This lever O is fixed to thesleeve g of the main shaft and is provided with a suitable grip-catch 0,that engages with a segment rack-bar P to hold the operating-lever inany desired position.

ItI is manifest that when the operating-lever O is shifted it will causethe crank F to swing, as both the lever and crank are attached to thesame sleeve g, and it will also impart a swinging movement to the crankM through the medium of the connecting-rod N. As a consequence, theplow-beam C and plow l) will be raised or lowered, according to theshift of the lever O; but inasmuch as the forward crank or link Fislonger than the rear crank M it is obvious that the forward portion ofthe plow-beam will be moved more rapidly than the rear portion, and as aconsequence the toe or point of the plow will travel more'rapidly and agreater distance than its heel. Hence it is plain that in lowering theplow to its work by the forward movement of the operating-lever O theplow will be pre- IOO IIO

sented to the ground point first and with itsn shown by full lines, oris in the Working or plowing position, as seen by dotted lines, thecrank M stands nearer to the vertical than does the4 crank F, and henceaside from its greater length the position of the crank F is such as tocause a greater vertical movement of the plow-beam than is produced bythe crank M in its less eifective position. Indeed it is plain that thedifferential movel in riding position.

ment of the plow-beam could be effected entirely, if desired, either asa result of the difference in the relative positions of the front andrear cranks or links or as the result of the difference in the lengthsof the cranks, and either construction I regard as within the scope ofmy invention, although I prefer to secure the differential movement byreason both of the difference in lengths and positions of the cranks. Inany event it is desirable that there shall be a slot similar to the slotfm of the crank or some like provision of a loose or free connection, soas to better allow forthe different movements of the cranks.

From the foregoing description the operation of my improved plow will beseen to be as follows: When the parts are in the position seen in fulllines in Fig. 2 of the drawings, the plow is raised above the ground andcan be then readily transported from point to point, the position ofparts being at such time It' now it is desired to break ground, theoperating-lever O will be moved forward to the position shown in Fig. 3of the drawings. This shifting ofthe operating-lever O at the verybeginning of the plowing operation will cause the plow D to be broughtto the position seen by dotted lines in Fig. 3 of the drawings, and thepoint of the plow being caused to move downwardly at a greater speedthan the heel of the plow will present the plow at such an angle as tocause the point to speedily enter the ground. As the team now advances,causing the turning of the furrow, the rear furrow-wheel willdrop intothe furrow and the plow will be brought with its bottom at the desiredworking angle, as seen by full lines in Fig. The operator will thenshift the lever L, if desired, in order to insure the transverselevelingr of the plow and frame. At the completion of the first furrowand as the second furrow is begun the operator will shift theoperating-lever O from the position seen in Fig. 3 to the position shownby dotted lines in Fig; 2, this being the normal Working position ofsuch lever.. This shift of the operating-lever will compensate for thedropping of the frontfurrow-wheel into the furrow that has been alreadyturned, since if no such shift were made the bottom edge of the plowwould be presented to the soil at too great an angle for 4proper workingand the point of the plow when the plow is raised from the ground, asV

seen in full lines,Fig. 2, the point Will be at such distance above theground as to enable the plow to clear or pass over any trash or likeobstructions upon the surface of the ground. It is manifest, also,thatinasmuch as the operating-lever O is attached to the axle G themovement of the operating-lever will not only effect the operation ofthe` cranks Vor links that sustain the plow-beam, but will also at thesame time cause the shifting of the land-wheel H, thereby securing amore speedy and effect-ive raising and lowering of the plow.

In plowing very hard and dry soil it is desirable that the point ot theplow shall be presented to the soilat a considerably greater'inclination than when the plow is operating in soft ground. By myimproved construction this change in the angle of the plow is effectedby adjusting the plow-frame up and down upon the standards of the frontand rear furrow-wheels by means of the collars NV V. Thus, for example,if the plowin the position seen in Fig. 3 is at the proper angle forturning soft ground, and it is desired to increase this angle in orderto adapt the plow for work in hard soil, it is only necessary to adjustthe collars \V XV with respect to each other in such manner as to bringthe bottom edge of the plow at the desired augle and at the same timeinsure that the point of the plow shall be at the proper position withrespect to the furrow-wheels.

From the foregoing description it is manifest that by the use ofdifferential mechanism for raising and lowering the plow not only is thepoint of the plow caused to travel more quickly into and out of thefurrow, but the bottom of the plow is held atthe proper working anglenot merely when the plow is running with the rear furrow-wheel in thefirst furrow that has been turned, but by shifting the differentialmechanism the proper working angle of the plow is maintained even afterthe front furrow-wheel has dropped into the furrow. Obviously, ifuniform link mechanism were employed for raising and lowering theplow-beam it would be found that if the plow were set at such an angleas to enable it to speedily enter the soil, then when the rear furrow-wheel dropped to the position seen by full lines in Fig. $3 theplow would be brought to the proper working angle; but as soon as thefront furrow-wheel dropped into the furrow, as seen by dotted lines inFig. 2, the inclination of the'plow would again become too steep andmanifestly no mechanism for simply imparting a`uniform lift to the IIOfront and rear of the plow could cure this despirit of my invention, andcertain features thereof may be employed without its adoption as anentirety.

Having thus described my invention, what I claim as new, and desire tosecure bv Letters Patent, isu l. In a sulky-plow, the combination, witha sustaining-frame and three carrying-wheels for said frame and aplow-beam supported by said sustaining-frame, of diiterential mechanismfor connecting the plow-beam with the sustaining-frame and for raisingand lowering the front and rear portions of the plowbeam to differentextents to impart differential movements to the point and heel of theplow, substantially as described.

2. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-wheels foi.1 said frame and a plow-beam supported by saidsustaining-frame, of differential mechaulsm connecting the plow-beamwith the sustaining-frame, said differentialmechanism comprising cranksextending between the plow-beam and the sustaining-frame and arranged toimpart differential movement to the front and rear supports of theplow-beam, whereby the point of the plow may be caused to travel fasterthan its heel, substantiallyas described.

In'a sulky-ploW, the combination, with a sustaining-frame and threecarrying-wheels for said frame and a plow-beam supported by saidsustaining-frame, of differential mechanism for raising and lowering theplow-beam, said differential mechanism comprising two cranks or links ofdifferent lengths serving to` connect different points of the plow-beamwith different points of the supporting-frame land whereby the front andrear portions of the plow-beam may be raised and lowered to differentextents, substantially as described.

4. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-wheels for said frame and a plow-beam supported by saidsustaining-frame, of differential mechanism for raising' and loweringthe plo w-beam, said differential mechanism comprising two cranks orlinks connecting the plow-beam and the sustaining-frame, said cranks orlinks being set at diiferent angles, whereby a differential movement isimparted to the front and rear portions of the plow-beam, substantiallyas described.

5. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-Wheels for said frame and a plow-beam supported by saidsustaining-frame,of differential mechanism for raising and lowering theplow-beam, said mechanism comprising two differentiallyoperating cranks,one of said cranks affording a loose connection-as, for example, by astud and slot-between the plow-beam and the supporting-frame,substantially as described.

6. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-wheels and a plow-beam supported by said sustaining-frame, ofcranks or links for sustaining front portion of the plow-beam, a shortercrank IWI, connected with the rear portion of the plow-beam, saidshorter crank having its end provided with a slotm, and anoperatinglevcr suitably connected with the front and 'rear cranks,substantially as described.

S. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-wheels and a plow-beam supported by said sustaining-frame, of adifferential mechanism for raising and lowering said plow-beam, saidmechanism comprising a long crank F, counected with the front portion ofthe plowbeam, a shorter crank M, connected with the rear portion of theplow-beam, and a single operating-lever suitably connected with thefront and rear cranks, substantially as described.

9. In a sulky-plow, the combination, with a sustaining-frame and threecarrying-wheels for said frame and a plow-beam supported by saidcarrying-frame, of differential mechanism connecting the plow-beam withthe sustainingframe, said mechanism comprising twodifferentially-operating cranks or links, a 'connection between saidcranks or links, and a single lever for operating said cranks or linksto raise and lower the plow, substantially as described.

10. In a sulky-plow, the combination, with a sustaining-frame andcarrying-wheels for said frame and aplow-beam supported by saidsustaining-frame, of differential mechanism for raising and loweringsaid plow-beam, comprising the cranks F and M, a single operating-leverO, and a connecting-rod N, uniting said crank M with said lever O,substantially as described.

1l. In a sulky-plow, thc combination, With a main frame and with thefront and rear furrow-wheels and the land-wheel for supporting saidframe. of a plow-beam, front and rear cranks or links connecting saidplow- .beam with the sustaining-frame, a single operating-lever forshifting said cranks or links, a suitable connection-such, for example,as a rodfor securing` the movement in unison of said cranks or links,and a crank-axle for the land-wheel suitably connected with theoperating-lever, whereby the said lever will serve to effect themovement both of the cranks or links and of the land-Wheel with respectto the main frame, substantially as described.

` WILLIAM SOBEY. In presence of-V CHARLES II. LEE, HENRY M. WALLIS,

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